A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
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End diagnosis and switch ignition off.
If specified value is obtained, but DTC memory has a DTC concerning Mass Air Flow (MAF) Sensor (G70):
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Check voltage supply of Mass Air Flow (MAF) Sensor (G70).
If specified value was not obtained:
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Check the Mass Air Flow (MAF) Sensor (G70) electrical circuit.
Checking voltage supply
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Disconnect the Mass Air Flow (MAF) Sensor (G70 ) electrical harness connector - 1 -.
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Start the engine and let it run at idle.
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Using a multimeter, check the Mass Air Flow (MAF) Sensor (G70) electrical harness connector terminal 3 to engine Ground (GND).
Specified value: battery voltage.
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Switch the ignition off.
If specified value was not obtained: